1,2,4-Trichlorobenzene
Perquimans County Water System
1,2,4-Trichlorobenzene is an industrial solvent that can harm the adrenal glands and may increase the risk of cancer.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2014 | ND | 2 | 0 | ND |
2015 | ND | 1 | 0 | ND |
2016 | ND | 2 | 0 | ND |
2017 | ND | 1 | 0 | ND |
2018 | ND | 1 | 0 | ND |
2019 | ND | 4 | 0 | ND |
ppb = parts per billion
State and national drinking water standards and health guidelines
EWG Health Guideline 5 ppb
The EWG Health Guideline of 5 ppb for 1,2,4-trichlorobenzene was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against hormone disruption.
EPA Maximum Contaminant
Level (MCL) 70 ppb
The legal limit for 1,2,4-trichlorobenzene, established in 1992, was based on a toxicity study in laboratory animals conducted in 1981. This limit may not fully protect against hormone disruption.
ppb = parts per billion
All test results
Date | Lab ID | Result |
---|---|---|
2014-02-19 | 8024-021914-E02V | ND |
2014-05-07 | 8024-050714-E02V | ND |
2015-05-06 | ND | |
2016-01-06 | 8024-010616-E01V | ND |
2016-05-04 | 8024-050416-E02V | ND |
2017-05-03 | 8024-050317-E02V | ND |
2018-05-09 | 8024-050918-E02V | ND |
2019-01-08 | 8024-010819-E01V | ND |
2019-04-03 | 8024-040319-E01V | ND |
2019-08-21 | 8024-082119-E01V | ND |
2019-10-15 | 8024-101519-E01V | ND |